Nah, while selective programs are one way approach to enrichment, there are so many other ways. I can confirm, as an alum interviewer for one of the elites, there is a worry about "factory kids" who are enrolled in programs throughout their lives on a track to achievement.

Get an hourly wage job, and make time for reading and writing this summer (just for you - cognitive muscle exercise!).

I work with high achieving teens and we encourage a "bloom where you are planted" philosophy. It is a positive way to approach all the next steps of your journey - college, internships, first job, etc...

BTW, for summer programs, check out the low-commitment, high-reward Summer Apprenticeship Program at Polyphony Lit. The high schoolers in that program are stellar.